Warp stop-motion for looms.



PATENTE) MAY101904.

A 0. REINHARDT. 0 I WAM S0700 M0TI0N P00 1.00000..

APPLIUATION TILED FEB. 24, 1902.

M0 MBEL.

4 SHEETS-SHEET 1.

@Q NVENmR ATTORNEYS IWITNESSES:

. No. 759,309.. l PATENTED MAY10,1904..V

U. REINHARDT, WARE STU? MOTION POR Looms.

A PPLIUATIOH FILED @13.24, 1902.

1m 110ML. 4 SHEETS-salam sa.V

lNVENmH mormvs y tto. 759,309;

ATENT Patenten :may 1o, ieee,

NICE

OTTO RICINIIARD'I, 0F EASTON, PENNSYLVANIA, ASdIGrllUl-It` TU THE FIRMUF It. & H. SIMON, UIP UNION HILL, NEW JERSEY., AND EASTON,

f PENNSYLVANIA'.

WARP STP-MDTIQN FOR LOOMS.

. f srncirIoArIoN forming para of neteeysratent Navesooe, dated May10,1904.

Y Application filed February 24,1902. Serial 170.95196. (No model.)

To @ZZ whom it may concern:

Be it known that I, OTTO RniNHARD'r, a citi.- zen of the United States,residing at Easton, Northampton county, State of Pennsylvania,

have invented certain new and useful Improve- `ments inWarp StolrMotionsfor Looms, of which the following is a specification.

My invention relates to looms, and has for its object to provide asimpleand eiiicient con IO struction for stopping the loom in case one ot "uwthe warps should break.

The invention will be fully described hereinafter and the features ofVnovelty pointed out in the appended'clairns. l

i5 Reference is to be had to the accompanying `drawings, in which-4Figurel is a plan of a loom provided with my improved stop-motion withparts omitted for the sake of greater clearness. Fig. 2 is'a 2Osectional elevation on line 2 2 of Iiig. 1. Fig.

3 isa detail plan of part of the dropper-holders. Fig. if is anotherdetail of the dropperholders drawn upon an enlarged scale. Figs. 5 and 6are sectional elevations showing the :i 5 warpdropper, and dropperholder or guide in two different positions. Ifig.' 7 is a crosssectionon line 7 7`voi` Fig. 1. Fig. 8 is a crosssection on line 8 8 ofFig.. 1. Iig. 9 is a sec tional elevation showing the same parts as Fig.

cross-section on line 8 10 ofA Fig. 1, showing the parts in a differentposition from that represented in Ifig. 8.

On the frame members 1 oi' the loom are carried ,brackets 2, whichsupport a cross-bar 3.- lo this bar are secured hangers fi, which attheir upper ends carry a horizontal bar 5,

2 and 5. y warps break, the corresponding dropper will 7, but in'adifferent position; and Fig. 10 is aV of the warps 6 is supported adropper l0, preferably made in the shape oi' a hairpin, and the saiddroppers are arranged tostraddle the holders or guides 6, as shownhestin Figs. 2 to 6 and 9. Normally-that is, when the wal-ps 6 arestretchedfthe droppers 10 will be held in an upper position, as clearlyshown in Figs.

Should, however, any one of'the 55 Iall untilits upper bend rests on theguide 8 below it, and the lower end of such dropper will then projectinto the path of mechanism, to be described presently, for actuating thestop device. The lower` ends of the hangers 4 carry a cross-bar 11, towhich are secured rigidly, as by angle-irons 12, guides 13 ofapproximately rectangular shape. In these guides is adapted toreciprocate from front to reara slide or carrier 14, provided with rigidarms 15, projectedi'orwardly therefrom. These arms are pivotallyconnected with links 16, which are joined to rocking arms 17, pivoted at18 upon suitable stationary hangers 19, and each driven by a cam oreccentric 20 on the shaft 21v For this purpose each oi' the arms 17 isprovided with a shoe 22, engaging the eccentric 20 and held against thesame by a weight 23. It will beunderstood that as 75 the shaft rotatesthe slide or carrier 14e will be reciprocated in the guides 13.

At each end of the carrier 14 are arranged posts 24:, receiving apivot-rod 25, 'upon which are looselymounted trip`-bars 26,wcighted attheir lower portions, asindicated at 27 in Fig. 2. lhe trip-bars willtherefore stand nor- `mally in a vertical position, as shown in Figs.

2 and 7. In this position each trip-bar holds up an actuating-dog 28,pivoted at the front 65 part of the slide or carrier 14C, as shown at2S). rlhe trip-bars26 are so arranged that normally the droppers 10 arenot in the path oi said trip-bars. Should, however, one of the droppersbe in its lower position, owing to the 4breakage .of a Warp 6, snchdropper will project into the path of the corresponding tripbar 26, andas the trip-bars reciprocate with the carrier 1li such bar will come inContact i, with .the projecting dropper and will be f rocked on itspivot 25, as indicated in Fig. 9.

This will allow the dog 28 to drop into its op- 'belonging to two ofthem. I desire itto be understood, however, that I may employ onlyone'trip-bar, if desired, or any other suitable l number of them. It ispreferable to have a plurality. of trip-bars, so that the weight of theparts to be moved by the dropper 10 in its lower position may belreduced.

The shaft 31 carries 'a lever 33, adapted to 'engage a stop 34. Stops 35may alsobe provided for each of the arms 32, although these stops arenot. necessary. With the lower end of the lever 33 is connecteda cord orwire 36, which' leads under a guide-pulley 37, journaled in a stationarybracket 38, and then extends upward in a cylindrical casing 39 to aplunger 40, workingvin said casing.A A spring 41 has a tendency to keepthe plunger in'its upper position, and therefore to throw the shaft 31rearward until the lever 33 engages. the stop 34. The plunger has a stem42 projecting forwardly and provided with guidepins 43, engaging slots44 'in the casing 39, so as to prevent a turning movement of theplunger. The stem 42 is providedwith an oblliquely-disposed arm 45 atits -upper end. This stem and arm constitute together a spring-pressedmember for operating a stop mechanism.

So far I have described thbse parts which constitute my invention andwhich are capable of attachment to any ordinary loom, the shaft 21 beingone of the counter-shafts of the loom. The arm 45'is thel element whichoperates the stop mechanism,y and in the construction shown said stopmechanism is one well known in the art as a weft stop-motionthat is, amechanism whichv operates to stop the loom in case the weft breaks. Bythe action ofthe arm 45 said mechanism becomes a warp stop-motion also,as willfully appear hereinafter. I desire it to be clearly understood,however, that the specific construction of the stop mechanism,consistingof the parts numbered from 46 upward, is not my invention, butis onewell known in the art, and I (laim such mechanism only genericallyas combined with certain' other elements named in the claimsand not inits specific details.

Upon the shaft 21 is locateda cam 46, which imparts an oscillatingmotion to' an elbow-lever 47, fulcrumed at 48. The upper end ofthisiever-is providedwah 'a hook 4.9. This the hook 49 upon the forwardmovement of the latter. The lever 51 is fulcrumed at 53 upon .an arm 54,adjustably secured ina socket 5 5.' This socket is carried by a rod56,.ad

justable in .sockets 57 in Va direction practically at a right angle tothe adjustment'of the arm 54. The sockets57 are carried by a plate 58,fulcrumed at 59 to a stationary part of the loom, sothat the entirestructure formed 4by 'the said plate 58, the rod 56, ,and the arm 54 canswing forward andrearward in a'horizontal plane, together with the hook50. A spring 60 normally keeps 'the `said structure in its rearmostposition. When the two hooks 49 and 50 interloclgwing to the breakage ofthe weft 61, the entire structure above defined is swung forward onitspivot 5 9, and a projection 62 at the forward portion of the plate 58shifts a releasing-lever 63, pivoted vat 64, upon a stationary part ofthe loom. This releasing-lever has a projection 65, which bearsagainstthe starting-lever -66 below its pivot 67. Thus when the releasing-leveris shifted forward against a stop 68 the startinglever 66 is thrown overinto the stop position, it being understood that said lever is connected.witlrthe usual belt-shifter or Vany other starting device.. Theoperation thus described is the usual operation of the weft'stop-motionillustrated in the drawings.

swing on its pivot 25 and allowing Athe corre- Now in case oneof thewarps should break one of the drop-.` pers 10 will fall, causing thetrip-bar 26 to IOO ilo

sponding dogf 28 -to drop. Thisidog will then engage the correspondingarm 32 and rock c lar construction of my improved stop-motion,

I desire it to be understood that Vthe construction described is only anexample of the many possible modes of execution of my invention,

and I do not intend tolimit myself to such specific constructions. 1

While I'havereferred to the U-shaped pins 1()- under the name ofdroppers, for the reason that they are arrangedto drop upon the breakageof the corresponding warp-threads, these'l pins may be designated morebroadly as Warpengaging elements, which are movable transversely of theWarps, but held .normally stationary thereby, and which when released bythe breakage of a Warp will move from their normal position into anactive position, in which they are adapted to `operate the stopmechanism.

l claim as my invention-` 1. The combination, with substantially U-shaped droppers arranged to be normally supported by the Warps, oiguides straddled by the thread-receiving bends of said droppers andarranged to limit their downward movement, the said droppers beingremovable by simply lifting them 0H' the guides and warps,

and both ends of the droppers'extending freely at the sides of theguides and projecting be neath said guides when the droppers are lowbred, and a stop mechanism arranged to be operated by either end of alowered dropper.

2. The combination of warp-engaging elements movable transversely of theWarps and normally heldin position thereby, each of said elements beingarranged to move transversely of its warp when the` latter breaks, aplurality of independent trip-bars each corresponding to a group of saidelements and adapted to be shifted by engagement with anyjpne element ofthe group which may be ont of its normal position, and a stop mechanismactuated by the shifting of any one of the said trip-bars.

3. The combination of a stop-inechanism, a

sliding spring-pressed member adapted to operate said mechanism ,"warp-engaging elements normally held stationary by the warps but adaptedto move transversely thereof when released by the breaking of a warp, aflexible Iconnection attached to said spring pressed member, and means,operated by the released Warp-engaging elements, fox-pulling saidconnection and moving the said member against the tension oi its spring.

4. The combination oi' a stop mechanism, a

l sliding spring-pressed member adapted to operate said mechanism,Warp-engaging elements normally held stationary by the Warps but adaptedto move transversely thereof when released bythe breaking of a Warp, aflexible

